Dewatering device.



. W. A. HENDRYX.

DEWATEBING DEVICE.

APPLIOATIOI nun 19.28.1911.

1,053,172, Patented Feb. 18, 1913.

2 SHEETS-SHEET l.

5 J0 l I WITNESSES INVENTOR W 71. M Allarnlyo W. A. HENDRYX.

DEWATEBING DEVICE- APPLIUATIOI ruin v0.2a. 191:.

1,053,172. Patented Feb.18,1913.

2 BHEETHHEET 2.

WITNESSES INVENTOR WMW ,4.

A llornzyl a'citizen of the-United States, residin STATES PATENT OFFICE.

wnso'n. ALSON n'mmarx, or NEW YORK, N. Y., 'assrenoa 'ro nsnnsrx cranmr. uacnmsar conrmnr, or NEW YORK, N. Y., a cosroaa'rron or name.

DEWATERING DEVICE.

Tolall whom itmay concern:

Be it known that I, WILBUR A. HENDRYX, at New York cit in the county of New ork and State of few York, have invented certain. new and useful Improvements in Dewaterin Devices, of which the following is a speci cation.

My invention relates to an improvement in the dewatering device shown in my Patent No. 960,546, patented June 7, 1910.

In the drawings-Figure 1 is an elevation, artly in section. Fig. 2 is a section, on a arger scale than Fig. 1 of the bottom ortion of the tank. Fig. 3 is a plan showmg the means for driving the screw-shafts. Fi 4 is a detail showing the closing gate.

ecured to the lower end of the conical portion 2 is a centrally located nozzle or tube 5 preferably ta ered, as shown. Arranged to rotate wit in this nozzle 5, is a screw 6, secured to shaft 7, which also has secured to it propeller blades 8-8, located within the lower portion of the cone. The lower end of the nozzle has an opening 30, controlled by a gate 3, held up to its seat by guides 4- 1 (Big. 4 Surroundin the shaft 7 is a hollow s aft 9, on whic are fastened propeller blades 10, 10, this shaft 9 being arranged to rotate at a considerabl slower speed than shaft 7. The shaft 7 is driven by a screw gear 11, meshing with a screw 12 on shaft 13. The hollow shaft 9 is similarly driven b a screw ear 14 meshing with a screw 14 on a sha t 15. On the shaft 13 is a spur-gear 16 arranged to be clutched thereto by a clutch 17. Meshing with gear 16 is a larger gear 18 fixed on shaft 15. This arrangement permits the solid shaft 7 to be driven without rotating the hollow shaft 9. The shaft 13 is driven by pulleys 19 from any suitable source of power.

Located near the top of the nozzle 5 are flat blades 20, 20, which revent the rotation of the plug of material as it is forced through the nozzle. 21,21, are a series of filter cells shown as mounted in the upper ortion of the tank. These may, however, e omitted, if desired. 22 is a launder extending around the top of the tank, for collecting and discharging, through pipes 23, the liquid at the upper portion of the tank.

In operation the crushed ore or other material, together with water or solution, is

Specification of Letters Patent.

Application flied August 28, 1911.

Patented Feb. 18,1913.

Serial No. 646,519.

run into the tank. The solids are allowed to settle to the bottom of the tank, while the liquid rises and passes off through the launder 22 and pipes 23, or throu h the filters 21, if they are used, a consi erable amount of settled solids bein allowed to accumulate in the bottom of t e tank. As soon as the tank contains sufiicient settled solids the gate 3 is opened and the shaft 7 revolved and the settled mass is b the action of the screws forced throug the nozzle thereby compacting it, and expressing the liquid, which works its way back into the tank, the solids being delivered in a practically dewatered condition.

The blades 8, 8 assist in the delivery of material to the screw 6, and the more slowly rotating blades 10 on hollow shaft 9, which may rotate at only one-fifth the speed of the shaft 7, also assist in this action without injurious agitation of the settled solids.

In case the apparatus should be left for a considerable time, so that the settled material has compacted, the solid shaft carry ing the delivery screw 7 and the smaller wings or blades is started, thereby loosening up the material and discharging a sufficient amount to permit the startin of the hollow shaft and larger blades by throwing in the clutch.

The tank may be provided with a launder, decanting cocks or a siphon to take off the clear solution.

I claim:

1. A dewatering apparatus comprising a settling tank having a conical lower portion provided with a delivery tube, a screw in said tube for forcing settled material therethrough, additional means arranged to rotate within said conical ortion for delivering material to said tu e, means for rotatin said screw more rapidly than said additional means, and means for throwing the said latter means out of action.

2. A dewatering apparatus comprising a settling tank having a conical lower portion provided with a delivery tube, a screw in said tube for forcing settled material therethrough, additional means arranged to rotate within said conical portion for delivering material to said tube, and means for rotating said screw more rapidly than said additional means.

3. A dewatering apparatus comprisin a settling tank having a conical lower portion provided with a delivery tube, a shaft extending into said tube, a screw secured to .said shaft and located within said tube, proeller blades also secured to said shaft and ocated within the lower portion of the cone, means for rotating the shaft, a sleeve rotatably secured -on said shaft above said propeller blades, said sleeve itself carryin propeller blades, means for rotating sai sleeve, and means for throwing the said second rotating means out of action.

4. A dewatering apparatus comprisin a settling tank having a conical lower portion provided with a delivery tube, a screw in said tube for forcing settled material therethrough, additional means arranged to rotate within said conical portion for delivering material to the said tube, a drivin gear for rotating the said screw and the sai additional means, and means for disconnecting the last additional means from the said driving ear.

5. A ewatering apparatus comprising a settling tank having a conical lower portion provided with a central delivery tube, a shaft extendin into said tube, a screw secured to said s iiaft and located within said tube, propeller blades also secured to said shaft and located within the lower portion of the cone, means for rotating the shaft, a sleeve rotatably secured on said shaft above said propeller blades, said sleeve itself carrying propeller blades, and separate means for rotating said sleeve.

6. A dewatering apparatus comprising a settling tank having a conical lower portion provided with a central delivery tube, a shaft extendim into said tube, a screw se cured to said shaft and located within said tube, propeller blades also secured to said shaft and located within the lower portion of the cone, means for rotating the shaft, a

sleeve rotatably secured on said shaft above said propeller blades, said sleeve itself carrying propeller blades, and separate means for rotating said sleeve, the rotating means arranged to rotate the shaft more rapidly than the sleeve.

7. A dewatering apparatus comprisin a settling tank having a conical lower portion provided with a central delivery tube, a shaft extendin into said tube, a screw secured to said shaft and located within said tube, a sleeve rotatabl secured on said shaft above said screw, sai sleeve itself carrying propeller blades, and separate means for rotating said sleeve.

8. A dewatering apparatus comprisin a settling tank having a conical lower portion provided with a central delivery tube, a shaft extendin into said tube, a screw secured to said shaft and located within said tube, a sleeve rotatably secured to said shaft above said screw, said sleeve itself carrying propeller blades, and separate means for rotating said sleeve, the rotating means arranged to rotate the shaft more rapidly than the sleeve.

9. A dewatering apparatus comprising a settling tank having a conical lower portion, a delivery tube connected to the bottom of said conical lower portion, a screw in said tube for forcing settled material therethrough, and additional separately actuated means arranged to rotate within said conical portion for loosening up the material within said portion.

In testimony whereof I allix my signature in presence of two witnesses.

\VILBUR ALSON HENDRYX.

\Vitnesses:

MAY FORD,

Jaarns L. Nesnir'r.

Coplcs of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C." 

